2640522474 has 24 divisors (see below), whose sum is σ = 5722728960. Its totient is φ = 879928488.

The previous prime is 2640522449. The next prime is 2640522491. The reversal of 2640522474 is 4742250462.

2640522474 is a `hidden beast` number, since 2 + 6 + 405 + 2 + 247 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52917 + ... + 89895.

It is an arithmetic number, because the mean of its divisors is an integer number (238447040).

Almost surely, 2^2640522474 is an apocalyptic number.

2640522474 is an abundant number, since it is smaller than the sum of its proper divisors (3082206486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2640522474 is a wasteful number, since it uses less digits than its factorization.

2640522474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40954 (or 40951 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 2640522474 is about 51386.0143813470. The cubic root of 2640522474 is about 1382.1758146465.

The spelling of 2640522474 in words is "two billion, six hundred forty million, five hundred twenty-two thousand, four hundred seventy-four".